|XP is just a number|
Re: Multiple Inheritance and Base Class access:
These are covered in "perldoc perltoot" (Run at command line).
These days, monks prefer to use "post-modern OO" implementations like Moose or it's minimalist imitation, "Moo".
Re: Error handling
You seem to be using CGI::Carp - if not, please do.
Re: Redirection exit vs return
I think exit is fine. Others may have esoteric reasons for preferring "return".
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In reply to Re: A couple questions about object oriented Perl programming: inheritance and error handling